InterviewSolution
Saved Bookmarks
| 1. |
What cause the sound of heart beat? |
|
Answer» ❀A normal heartbeat has two sounds, a lub (sometimes called S1) and a dub (S2). These sounds are CAUSED by the closing of valves INSIDE your heart. Hope it's helpful↑(◍•ᴗ•◍)❤࿐ |
|